Sulky spring-tooth harrow and cultivator



(No Model.) 2 fSheets-rSheet 1.

0. LA DOW.

SULKY SPRING TOOTH HARROW AND GULTIVATOR.

No. 269,O6 3- Patented Dec. 12, 1882.

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(No Model.) 2 Sheets-Sheet 2v C. LA DOW.

SULKY SPRING TOOTH HARROW AND CULTIVATOR. No. 269,068. Patented Deo.12,1882.

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CHARLES LA DOW, OF ALBANY, NEW YORK.

SULKY SPRI NG-TOOTH HARRO W AND CULTIVATOR.

SPECIFICATION formingpart of Letters Patent No. 269,068, dated December12, 1885?.

V Application filed February 11, 1882. (No model.)

To all whom it may concern Be it known that I, CHARLES LA Dow, a.

citizen of the United States, .and residing in the city and county ofAlbany, and State of New York, have invented a new and useful I111-provement in Sulky Spring-ToothHarrows teeth to work the soil, and aremounted on wheels and capable of being adjusted and set to work the soilto any required depth.

This invention consists in the combinationof a draft-frame, arockingbarconnected therewith, ground-wheels supporting the bar and serving asbearings for the rocking movement of the same, a series of spring-teethof differout lengths, adjustable in a direction around the rocking barrelatively to each other to vary the penetration of their points, andhaving their points arranged in different vertical planes across theline of draft, and means for rocking the bar and teeth.

The invention further consists in the combination of a draft-frame, arocking bar connected therewith, ground-wheels supporting the bar andserving as center bearings forthe rocking movements of the same,spring-teeth attached in series to the rocking bar with their pointsarranged in different vertical planes, and means whereby the teeth maybe varied and held in one series relatively to the teeth in anotherseries by frictional contact between the teeth and their carryingrocking bar.

The invention further consists in the combination of a draft-framesupported by wheels, a rocking bar attached to the frame and arrangedbetween the wheels, a series of teeth on the bar, and a sectionorextension also carrying teeth, and capable of being attached to therocking bar for varying the width of the soil-working parts of themachine.

The invention further consists in the combination of a draft-frame, arocking bar attached thereto, mechanism for rocking the bar andholdingit as adjusted, teeth adjustably attached to the bar, andmechanism whereby part of the teeth can be reversed without interferingwith the rocking of the bar and the work and movement of the otherteeth.

The'invention further consists in the comened to the cross-bar.

' E by means of suitable springand pawl.

brating spring-teeth mounted on said bar, the

teeth adjacent to the wheel-hubs being extended or bent laterally toadmit the hubs be tween them, and thereby maintain the proper relativeposition of the cutting'points of all the teeth.

Referring to the drawings, Figure 1 represents a top view of myinvention. Fig.2 represents a side view of the same. resents theadjustable section or extension for varying the width of the operationof the machine.

A A are the ground-wheels, and are mounted on the axle O. B is thecross-bar; .D, the pole; O O, the braces securing the pole and cross-bartogether. E isthe toothed rack fast- The axle (3 is preferably made ofgas-pipe or other hollow tubing, and is arranged to'rock through thecenter of the wheel-hubs, which act as journal-bearings therefor. Thecross-bar is connected with the axle by eye-bearings H I H I. The teetha. a a are preferably made of flat spring-steel, and are bent at theirupper ends to form a loop or clasp, partially encircling the axle C. Theteeth are made of dift'erentlengths and curvatures, so as to bring theirpoints in different vertical planes across the line of draft, in orderto thoroughly work the ground at one transit of the machine, and yetallow stones and rubbish to readily pass through between the teeth.

b b are clips arranged above and below the clasp of the tooth. V

c c are clampingbolts for locking the tooth to the axle by frictionalcontact.

F is a ratchet-lever engaging with the rack y rocking the lever theteeth can be either forced into the ground or raised above it, the rackand pawl holding the teeth and their axle-bar in any position adjustedor desired.

In order .to force all the teeth into the earth uniformly at differentdepths of penetration, the clamping-bolts c 0 may be loosened 0n therear series of teeth, and they can be set at the same depth as the frontteeth, the bolts retightened, and the teeth securely held in any desiredposition relatively to their axle-bar.

Fig. 3 rep- The upper end of the tooth-clasp has an upward or returnbend to prevent the bindingclips from slipping ofl'.

When it is desired to use the machine as a cultivator of rowed crops thebolts and clips on the teeth near the center of the machine may beloosened sufficiently to allow the axlebar to be rocked freely withinthe clasps of said teeth. These center teeth may then be thrown forwarduntil their weight will cause them to overbalance, and they can be thuscarried in reversed position on the crossbar without being disturbed bythe rockingof the axle when operating the teeth at work,'and withoutbeing seriously in the way of the driver on his seat.

3 l l l retaining said pin Q, and the axle-extension U- relatively tothe axle C, the linchpin performing the office of keeping both the wheeland the axle-extension in place.

. of the wheel.

Spring-teeth are placed upon the axle-extension in the same manner asupon the axle between the wheels. When cultivating rowed crops or on anyother proper occasion the'axleextensions may be dispensed with and themachine used without them. The teeth adjacent to the wheels are bentsidewise in order to bring their cuttin g-points in proper placerelative to their line of draft and to thecutot' their adjoining teeth,and at the same time allow a hub of suitable length to be used on theaxle between the teethin proportion to the height The seat S andstandard V are mounted in the socket on v draft-pole I) in the usualmanner. The draft-pole D and crossbar B are kept from undue lateralmovement by placing the eye-bearings H l H between the tooth-clasps onthe axle (3. Any of the teeth between the wheels may be loosened on theaxle and thrown forward and reversed on the cross-bar without attectingthe work and rocking movements of such teeth as may be left working thesoil.

The machine may be made either with or without extensions for the axleand of any width desired, and the extensions may be used on one sideonly or on both. The teeth may be constructed so that their points willstand in one vertical plane or several across the line ofdraft. Wheelsof any diameter may be used, according to the nature of the workrequired. Having described my invention ,what lclaim, and desire tosecure by Letters Patent, is

1. The combination ofa draft-frame, arocking bar connected therewith,ground-wheels supporting the bar and serving as bearings for the rockingmovement of the same, a series of spring-teeth of different lengths,adjustable in a direction around the rocking bar relatively to eachother to vary the penetration of their points, and having their pointsarranged in different vertical planes across the line of draft,

and means for rocking the bar and teeth, sub-- ported by wheels, arocking bar attached to' the frame and arranged between the wheels, aseries of teeth on the bar, and a. section or extension also carryingteeth and capable of being attached to the rocking bar for varying thewidth of the soil-working parts of the machine, substantially asdescribed.

4. The combination of a draft-frame,a rocking bar attached thereto,mechanism for rocking the bar and holding it as adjusted, teeth adjustably attached to the bar, and mechanism whereby part of the teeth canbe reversed'wita out interfering with the rocking of thebar and the workand movement of the other teeth, substantially as described.

5. The combination of a draft-frame supporting a rocking bar,ground-wheels arranged on the bar, and in the hubs of which'wheels thebar rocks, and vibratory spring-teeth mounted on said bar, the teethadjacent to the wheel-hubs being extended or bent laterally to admit thehubs between them and thereby maintain the proper relative position ofthe cutting-points of all the teeth, substantially as described.

' CHARLES LA DOW. Witnesses:

.RICHARD P. DUMARY,

WM. W. DIAMOND.

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